Show a Welcome Message to Visitors and Logged in users.

<?php

/**
* Custom code for mod_php. 
* copyright: www.fijiwebdesign.com
* Shows a welcome to the logged in user, or vistor. 
*/

global $my;

if ($my->id) {
  echo 'Hello, '.$my->username;
} else {
  echo 'Hello, visitor';
}

?>

This displays Hello, {username} or Hello, visitor based on the users logged in status.